| Code | Title | 
					
				| – | Top Categories | 
		
					
				| 0 | Medical and Surgical | 
					
				| 0G | Endocrine System | 
					
				| 0GN | Release
					Endocrine System, Release | 
					
				| 0GN0 | Pituitary Gland | 
					
				| 0GN1 | Pineal Body | 
					
				| 0GN2 | Adrenal Gland, Left | 
					
				| 0GN3 | Adrenal Gland, Right | 
					
				| 0GN4 | Adrenal Glands, Bilateral | 
					
				| 0GN6 | Carotid Body, Left | 
					
				| 0GN7 | Carotid Body, Right | 
					
				| 0GN8 | Carotid Bodies, Bilateral | 
					
				| 0GN9 | Para-aortic Body | 
					
				| 0GNB | Coccygeal Glomus | 
					
				| 0GNC | Glomus Jugulare | 
					
				| 0GND | Aortic Body | 
					
				| 0GNF | Paraganglion Extremity | 
					
				| 0GNG | Thyroid Gland Lobe, Left | 
					
				| 0GNH | Thyroid Gland Lobe, Right | 
					
				| 0GNK | Thyroid Gland | 
					
				| 0GNL | Superior Parathyroid Gland, Right | 
					
				| 0GNM | Superior Parathyroid Gland, Left | 
					
				| 0GNN | Inferior Parathyroid Gland, Right | 
					
				| 0GNP | Inferior Parathyroid Gland, Left | 
					
				| 0GNQ | Parathyroid Glands, Multiple | 
					
				| 0GNR | Parathyroid Gland |